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A line of positive charge is formed into a semicircle of radiusR. The charge per unit length along the semicircle isdescribed by the expressionλ=λ0/θcosθ. Calculate theelectric field at the center of the curvature.
Two point charges of +1.0nC (located at x=1.0m), Calculate the magnitude of the net electric field at the apex of the triangle
a wire carrying a 2-a current is placed at an angle of 60deg with the respect to a magnetic field of strength 0.2 t.
Male mosquitoes in the mood for mating find female mosquitoes of their own species by listening for the characteristic "buzzing" frequency of the female's wing beats. How many wing beats occur in one minute
A copper-constantan thermocouple generates a voltage of 5.03 10-3 volts when the temperature of the hot junction is 121.0° C, what is the temperature of the hot junction
A cube of mass m is sliding without friction at speed vo. It undergoes a perfectly elastic collision with the bottom tip of a rod length d and mass M = 2m. The rod is pivoted about a frictionless axle through its center, and initiall y it hangs strai..
A 7.4- g piece of silver undergoes isochoric heating, By how many joules does the internal energy change
A voltage ?v = (110 V) sin ?t (in SI units) is applied across a series combination of a 1.92 H inductor, a 12.5 µF capacitor, and a 12.8 O resistor. Calculate the power at that frequency
A mine elevator is supported by a single steel cable 2.8 cm in diameter. The total mass of the elevator cage and occupants is 520 kg. By how much does the cable stretch when the elevator hangs by (a) 13 m of cable and (b) 364 m of cable? (Neglect the..
A 82.5-kg climber is scaling the vertical wall of a mountain. How much is the rope stretched when it breaks his fall and momentarily brings him to rest
A chamber with a fixed volume of 1.0 m3 contains a monatomic gas at 3.00 102 K. The chamber is heated to a temperature of 5.00 102 K. How many gas molecules are in the chamber
Discuss in detail why it might be dangerous to microwave raw eggs with their shell intact using the concepts learnt today (Hint: pV = nRT).
A cubic meter of copper has a mass of 8930kg. The block of copper is lowered into a lake by a strong cable until the block is copletely submerged
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